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Finding the Fourth Proportional to 340,365.47, 469,700.56 and 187,400.50

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Solution

The fourth proportional to 340,365.47, 469,700.56 and 187,400.50 is: 258,610.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,365.47 : 469,700.56 = 187,400.50 : x
  2. Step 2: Convert to fraction form
    340,365.47/469,700.56 = 187,400.50/x
  3. Step 3: Cross multiply
    340,365.47x = 469,700.56 × 187,400.50
  4. Step 4: Simplify right side
    340,365.47x = 88,022,119,794.28
  5. Step 5: Solve for x
    x = 88,022,119,794.28/340,365.47
  6. Step 6: Final answer
    x = 258,610.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.